Car construction.



H. M. PFLAGER. CAR cowsmuc nou. APPLICATlON HLED Fmzi. i914.

Patented July 20, 1915.

' movement, thus making the car easy 4 otal connection could be made with the car HARRY PFLAG-ER, OF ST. LOUIS, MISSOURI.

CAR cons'rnucrrolv.

Application filed February 21,3914. Serial no. 820,183.

To all whom it may concern Be it known that I, HARRY M. PFLAGERY a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Car Construction, of which the following is a full, clear, and exact description,

such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a partial top plan view of my improvement in car construction; Fig. 2 is a side elevational view of the same. Fig. 3 1s a cross sectional view taken between the wheels.

This invention relates'to a new and useful frames and the car body whereby the side truck frames have greater flexibility of I riding.

In the drawings 1 indicates the body bolster of the car which is provided at each end with convex bearings 2 cooperating with concave seats in spring followers 3. It 1s obvious that the bearing between the springfollower and the ends of the bolster may be of a different form, but I prefer the spherical bearing on account of its ability to slightly rock in service thereby contributing to the flexibility of the construction. i

There is no so-called center bearing in my improved car construction, but both side truck frames are swiveled, a king pin 4: being employed for this purpose, the upper end of said pin being secured in part of the body of the car, said pin passing down through a slightly enlarged opening in the follower plate 3 so as to permit a rocking movement between the partsvand casting 5 which latter practically constitutes an equalizing bar, said casting carrying the journal boxes 6 at each end, the lower ends of which journal boxes are connected together by a tie bar 7. These journal boxes are preferably bolted to the ends of the equalizing bar and the axles 8, which are ournaled therein, cooperate with brasses swiveled in the oin-- Specification of Letters Patent.

Patented July 20,1915.

nal boxes in a manner similar to that disclosed in my aforesaid Patent No. 995,560.

The equalizing bar is formed with upwardly extending slotted projections 9 about its center into the slots of which fit extensions 10 depending from the spring follower 3. This construction permits vertical movement but prevents independent rotation of the spring follower and side truck frame.

11 are the supporting springs centered-on teats formed on the spring follower 3 and the equalizer 9. i j

The side truck frames or equalizers at each side of the car are preferably tiedtogether by means of a bar 12 secured therein, as shown in Fig. 3. i

The above construction provides. a more flexible mounting for the side truck frames each of which are swiveled to turn under the ends of the body bolsters from the wheel axles swiveling, in the side truck frames to accommodate this movement when the car is I 'body, or any other part of the underframe and in using the expression f underframe 1n the following claims, it Wlll be understood to include any portion of the car body, its

sills, or underframe members.

I claim:

1. In car construction, an underframe, truck frames pivotally connected thereto, said truck frameshaving two or more journal boxes, wheels and axies mounted in the journal boxes and having swiveled relation thereto, and a rocking bearing interposed between the side truck frames and the underframe.

2. In car construction, an underframe, side truck frames each having rocking relation to said underframe, journal boxes carried by said truck frame, and axles mounted in said journal boxes and having horizontal swiveled relation thereto whereby parallelism may be maintained between sald axles and said truck frames at all times. I

3. In car construction, an underframe carrying rocking bearings, spring followers cooperating with said bearings, springs "and king pins passing through said bearings and side trunk fram 1 Q niezeee 4:.1n car construction, an underframe having rocking bearings, a spring follower cooperating with said bearings, springs, side truck frames, and' means on the side truck frames and said spring followers for preventing independent rotation thereof but permitting vertical movement of said parts relative to each other.

5. In car construction, an underframe having rocking bearings, spring. followers cooperatingwith said bearings and side truck frames, there being a king bolt passing through said parts atseach corner of the car to form a pivotal point for each car truck frame, and Wheels and axles mounted in the frames.

6. In car construction, an underframe, truck side frames each having pivotal relation at their centers to said underframe by means of a rocking bearing, journal boxes fixedly carried by the truck, side frames, and axles mounted in ,said journal boxes.

7. In car construction, the combination. with an nuclei-frame, of truck side frames -each separately pivotally connected therewitlnsaid truck side frames having recesses for receiving a cross connecting member, a cross connecting member, and a king bolt passing through a portion of the underframe of the car, the truck side frame'and the end of said cross connecting member, said king bolt forming a pivotal axisabout which the truck frame swings.

In testimony whereof I hereunto afiix my signature in the presence of two Witnesses, this 7th day of February, 1914:.

HARRY M. PFLAGER.

Witnesses:

M. P. SMITH, C. S. BUTLER.

@opflec of this patent may be obtained for five cents each, by addressing the Commissioner of Eater-its,

' v weshingtonm. G. 

